The world's largest retailer hosted its first two-day summit beginning Thursday bringing together retailers, suppliers and government officials that it hopes will build on the company's recent commitment to drive more manufacturing in the U.S.

The event, which attracted representatives from 500 manufacturers, eight governors, U.S. Commerce Secretary Penny Pritzker and officials from three dozen states, comes seven months after the Bentonville, Ark.-based discounter pledged that it planned to buy $50 billion more U.S.-made goods over the next decade. That's the equivalent of just more than 10 percent of what Walmart will sell at retail this year.

But Walmart has said that if other merchants do the same, that would mean an additional $500 billion in American-made goods over the next decade.

The lineup for Thursday was impressive, and the campaign could serve to boost Walmart's image, constantly under attack by labor-backed groups who have criticized the retail behemoth as a destroyer of U.S. jobs, not a creator.

Walmart's CEO Mike Duke, Bill Simon, the company's U.S division CEO and other executives, joined other business leaders including Kevin Toomey, president and CEO of the Kayser-Roth Corp., and Jeff Immelt, chairman and CEO of General Electric Corp.

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Immelt got into the spirit of the summit by announcing that General Electric would be bringing 150 manufacturing jobs to plants in Illinois and Ohio where high-efficiency lighting will be built.

“We wanted to be a part of this,” Immelt said. “This is a first step.”

The announcement by GE was in keeping with the goal of the summit, which is to start “connecting the dots” with a dialogue among manufacturers, retailers and state officials about where opportunities are to bring more manufacturing to the United States, Simon said.

“It could be difficult for one at a time, all of us on our own,” Simon said. “The best way to overcome the challenges is to talk to one another.”

Rising wages have erased some of the competitive advantages China had in manufacturing, Simon said.

“We think we can map out opportunities and put some systems in place and commit to this for the long term,” Simon said. “There's nothing less than the future of our country at stake here.”

“But this is bigger than Walmart. We want the support of other retailers,” said Gloeckler, senior vice president of the home area, who's leading the domestic sourcing initiative.

To be sure, even if Walmart is successful in getting key retailers and suppliers on board, experts say it won't rejuvenate the U.S. manufacturing industry.

But the movement could help stem the tide of jobs flowing to China and elsewhere that has been occurring in the last two decades.

Some experts are skeptical, pointing out that Walmart led the migration of manufacturing jobs overseas in search of the cheapest labor, veering away from the principles of its late founder Sam Walton, who espoused buying American-made goods.

“It's a very positive PR move for the company,” said Burt Flickinger III, president of retail consultancy Strategic Resource Group. “But it took two decades to unwind the American manufacturing base, and it will take two decades to bring it back.” He said what will be brought back will only be a fraction of business sent overseas.

This is not the first time that Walmart has pledged a made-in-America campaign.

It pushed a similar program in the mid-1990s that fizzled because it couldn't get enough low-priced goods to sell to its low-income shoppers.

But executives vow its efforts this time around go well beyond a marketing campaign and involve dissecting each of its 1,300 product categories, from bath towels to gadgets, to determine which can be made here.

It's also reaching out to state and local officials to work with suppliers to explore rebates, training and other programs to attract U.S. makers.

The discounter also says it's changing the way it does business with suppliers, giving multi-year commitments for basic goods where it makes sense, instead of season-by-season ordering.

Rebuilding U.S. manufacturing jobs is resonating even more these days.

The nation's unemployment rate of 7.4 percent, while now at a 41/2-year low, is still well above the 5 percent to 6 percent typical of a healthy economy.